First on AppleInsider: A trio of online advertisements that appear to have been published prematurely by one of Apple's international online stores suggest it's only a matter of days before the Mac maker takes the wraps off of new families of ultra-thin iMacs, lighter & thinner plastic MacBooks, and more affordable Mac minis [Updated with other countries].

The Netherlands-based Google Ad Sense ads, which can be seen below along with their Dutch to English translations, cropped up on Google.nl earlier this weekend and direct shoppers to the localized version of the Apple Store, where the advertised products are not available.

In recent weeks, Apple has informed its direct and indirect sales channels of constraints on MacBooks, iMacs, and Mac minis. Many of the company's resellers are also sold out of iMacs and Mac minis and have been given restocking estimates of October 7th and 9th for those two products, respectively, suggesting a formal announcement regarding these Mac hardware refreshes could come as early as this Tuesday.

Some Apple retail stores also reportedly received new signage in the past 48 hours that's not to be opened or displayed until further notice.

English: Apple's New Mac Mini. Faster and more affordable than ever. From only  499. Order immediately.

Note: The cheapest Mac mini currently sells for  599 on the Netherlands online store.

Update: An ad for the new iMac can also be found via a search on the Italian Google Web site at a price of 1099 . In addition references to a "new white MacBook" can be found on the German and Austrian sites.